baber/WOPTO huggingface dataset:
Patent GB-1083472-A (GB)
Title: Improvements in or relating to telephone amplifying apparatus
IPC: H04M1/03
Filed: 1965-09-17
Abstract: 1,083,472. Hearing aids. S. G. BROWN Ltd., and V. H. A. DIEDERICHS. April 14, 1966 [Sept. 17, 1965], No. 39831/65. Heading H4J. A telephone amplifying apparatus is secured to the ear-cap 12 of a hand set 10, e.g. -by a rubber moulding 14, and comprises a microphone 20 for fitting close to the handset receiver, an amplifier, a receiver 22 for reproducing the amplified sound and switch contacts 24, 25 which are automatically closed when the apparatus is pressed against the user's ear. The moulding 14 has an annular groove which holds a printed circuit board 15 of a transistor amplifier (not shown), power for which is supplied from a mercury cell 16. The microphone 20 is mounted on a rubber block 21 on the board 15. A volume control 26 is provided. The moulding 14 includes a centrally apertured membrane extending across the ear-cap 12. The handle of the handset 10 is fitted with a resilient plastics pad (28), Figs. 1, 2 (not shown), in order that a handset cradle may accept the handset.
Patent GB-1403438-A (GB)
Title: Electrochemical heat sources
IPC: A47J36/30
Filed: 1972-08-25
Abstract: 1403438 Resistance heating element CHEME-WATT CORP 25 Aug 1972 [20 Aug 1971] 39848/72 Headings A4A A4V AB1 V14A3 and V14A5X An electric heat source is formed by a shorted electro-chemical reserve cell. As shown, a flexible heat source comprises a perforated anode 26; a cotton, felt or bibulous paper separator 28 and an air cathode comprising hydrophobic activated carbon 24 and a current carrying support grid 22 formed of nickel or iron. The anode 26 is wrapped around the separator 28 and cathode to engage the grid 22 and form the short circuit. Fasteners 32, e.g. rivets or staples mechanically secure the anode and cathode together and further short circuit the cell. The separator layer 28 is impregnated with a dry salt, e.g. NaCl or the salt may be dispersed between the anode and cathode. The cell is activated by the addition of water through the perforated anode 26. The heat generated may be determined by the thickness of the separator and the resistance or cross-sectional area of the fasteners. In an alternative construction, Fig. 5 (not shown), the grid 22 is extended beyond the edges of the activated carbon and the anode is spot welded or riveted to the projecting part of the grid to form the short circuit. The heat source may be located in the central recess of a perforated plastic hair roller, Fig. 6 (not shown), which is immersed in water to activate the heat source prior to winding it with a tress of hair. The flexible heat source may also be used in a hot compress applied to the body, the cell being activated prior to application by a liquid electrolyte, or being activated by water absorbed from the wetted cotton compress. The heat source may also be removably clipped to the bottom of a cooking vessel, the source being activated by immersing the bottom of the vessel in water. The anode is an oxidizable metal, preferably chosen from Al, Sn, Mg, Zn or Fe or their alloys. The cathode may be an activated carbon or metal air electrode or manganese dioxide, metadinitrobenzene, silver chloride, silver oxide, copper fluoride or copper chloride.
Patent GB-1348432-A (GB)
Title: Casting process for producing electrical bushings
IPC: B29C70/64
Filed: 1971-08-25
Abstract: 1348432 Centrifugally casting electrical bushings MICAFILAG 25 Aug 1971 [25 Aug 1970] 39961/71 Heading B5A [Also in Division H2] Insulating bushings with electrically conductive layers are centrifugally cast by inserting a charge of fluid synthetic resin into a rotating mould and allowing or causing it to set to form further layers, at least one such layer containing electrically conductive material of specific gravity different from that of the fluid resin, so that it will migrate through the resin under the influence of centrifugal action to form an electrically conductive layer at a face of the respective insulating layer. By including conductive material in each layer a series of concentric conductive layers can be produced and these may be on the external or internal face of any particular layer according to the density of the material relative to that of the resin. The resin for different layers may have different dielectric constants to obtain various stress gradings and a covering layer of high dielectric constant may be produced by the inclusion of material such as titanium dioxide to the resin of that layer. Layers of different lengths may be produced by machining the cured product, or by using a conical mould, or by using a nozzle which only traverses a part of the mould length to deposit the resin containing the conductive particles (the Fig., not shown). Any resin of suitable viscosity may be used, e.g. epoxy, unsaturated polyester, polyurethane, curable hydrocarbon, or diallyl phthalate resins, or phenol or melamine casting resins. The conductive materials may be metal or graphite powders, metallized non-conductive powders, or metal or semi-conductor whiskers. Floating materials may be obtained by metallizing hollow microspheres of glass or plastic or low density powders. Dispersions of low density alkali metals may also be used with appropriate precautions. A detailed dimensioned example of a bushing moulded in 10 layers from heat-cured polyester resin containing 2% graphite powder is given, the casting being post-cured, a copper pipe being embedded in the bore using epoxy resin and a flange bonded to the outside, both pipe flanges being electrically connected to conductive strata, and the bushing being conically machined.
Patent GB-1007847-A (GB)
Title: Process for the preparation of 3-acylamino-3-ureido and 3-thioureido-2-pyrazoline-5-ones
Inventor: MONBALIU MARCEL JACOB
IPC: C07D231/52
Filed: 1963-10-10
Abstract: 3-Acylamino, ureido and thioureido-2-pyrazoline-5-ones are made by allowing 3-amino-2-pyrazoline-5-ones to react with acid chlorides or anhydrides or with organic isocyanates or isothiocyanates, in an anhydrous inert solvent, preferably known to be used in Friedel-Crafts reactions, especially introbenzene, 1,2-dichloroethane or dichloromethane, in the presence of a Friedel-Crafts metal halide catalyst, e.g. aluminium chloride, or bromide, stannic chloride, antimony pentafluoride and zinc chloride, of which aluminium chloride or antimony pentafluoride are preferred.  The reaction temperature range should be below the boiling point of the inert anhydrous solvent, i.e. 10 DEG  to 80 DEG  C. Numerous syntheses are given by way of examples.  U.S.A. Specifications 2,369,439, 680,488 and 737,692 are referred to.
Patent GB-1404161-A (GB)
Title: Detergent compositions
IPC: C11D3/37
Filed: 1972-08-29
Abstract: 1404161 High performance laundry detergent COLGATE-PALMOLIVE CO 29 Aug 1972 [1 Sept 1971 12 Nov 1971 22 May 1972] 40005/72 Heading C5D A detergent composition substantially free of carbonate and phosphate comprises (A) sodium linear alkylbenzene sulphonate detergent, (B) sodium silicate, (C) a non-ionic detergent and (D) a water-soluble anti-redeposition polymer, the wt. ratio of (A) to (B) being in the range of 2 : 1 to 1 : 2, the wt. ratio of (A) to (C) being 15 : 1 to 4 : 1, the wt. ratio of (A) to (D) being 90 : 1 to 6 : 1 and the amount of (C) being at least 4% of (A) plus (B). The composition contains 18 to 45% of (A), 25 to 40% of (B), 3 to 5% of (C) and 0À5 to 3% of (D). (A) is preferably a sodium C 11 -C 14  alkyl benzene sulphonate; (B) is a sodium silicate with a Na 2 O: SiO 2  ratio of 1 : 2 to 1 : 3; (C) is preferably a C 10 -C 18  aliphatic alcohol condensate with 5-15 moles ethylene oxide; (D) is preferably sodium carboxymethylcellulose which may be replaced in part or all by polyvinyl pyrrolidone, polyvinyl alcohol, sodium starch glycolate, sodium cellulose sulphate, starches or copolymers of maleic anhydride and ethylene or vinyl methyl ether. Optional additions are (E) foam suppressors, e.g. soap and di-coco-amine; (F) bleaches, e.g. sodium hypochlorite, sodium trichlorocyanurate and sodium perborate; (G) organic builders; (H) dyestuffs; (J) enzymes; and (K) germicides. The compositions are high performance laundry detergents effective in hard water.
Patent GB-1049769-A (GB)
Title: Organic compounds containing an isocyclic and a heterocyclic non-aromatic ring and aprocess for the production of these compounds
Inventor: HUENIG SIEGFRIED
IPC: C09K15/30
Filed: 1963-10-11
Abstract: Novel compounds of the formula <FORM:1049769/C2/1> wherein m is 4 to 13 and n is 3 to 13, and tautameric forms thereof are prepared by reacting a lactin sulphonic acid ester of the formula <FORM:1049769/C2/2> in which R1 represents an aliphatic, aromatic or araliphatic radical with an enamine of the formula <FORM:1049769/C2/3> wherein R2 represents identical or different aliphatic radicals or aliphatic radicals which may be linked together, and hydrolysing the intermediate amine of the formula <FORM:1049769/C2/4> thus formed, e.g. using 26% HCl or 75% acetic acid to give the corresponding hydroxyl compound or tautomers thereof as defined by the keto-enol equilibrium. <FORM:1049769/C2/5>
Patent GB-1042198-A (GB)
Title: Improvements in or relating to the preparation of unsaturated diols
IPC: C07C29/56
Filed: 1963-10-11
Abstract: Unsaturated diols are made by passing an epoxy alcohol, especially of the general formula <FORM:1042198/C2/1> where the R's may be the same or different and may be H, alkyl, cycloalkyl, aryl, alkaryl or aralkyl and n = 0 or an integer over a lithium phosphate comprising catalyst at elevated temperature, especially 200 DEG  to 300 DEG  C., prefeably using an inert carrier gas. Especially suitable as starting material is 3,4-epoxy-4-methylpentanol-2, which yields 3,4-dihydroxy-2-methylpentene-1. The starting materials may be prepared by either peracetic acid epoxidation of an unsaturated monohydric alcohol or oxidation of the olefin, e.g. 4-methylpentene-2, or hexene-2 in the presence of vanadium naphthenate at 60-70 DEG  C. to give mixtures of 4-methyl-3,4- and 2,3-epoxypentanol-2 and 2,3-expoxy-hexanol-4 and 3,4-epoxy-hexanol-2 respectively.
Patent GB-1175051-A (GB)
Title: Improvements in or relating to cathode protection
IPC: C23F13/02
Filed: 1965-09-21
Abstract: 1,175,051. Preventing corrosion. MORGAN BERKELEY & CO. Ltd. Dec. 21, 1966 [Sept. 21, 1965], No.40205/65. Heading C7E. An electrode 16 for a sacrificial or impressed current cathodic protection system is mounted in a recess 11 in e.g. a ship, the recess being of elliptical shape. The anode is held by studs 18 with the interposition of rubber gaskets 26 and a polyester-glass fibre sheet 13. The electrode comprises a plastic coated steel plate 17 with a platinized titanium anode 23. A cable 24 connected to the anode passes through an exit 32 in a cofferdam 27.
Patent GB-1136980-A (GB)
Title: High temperature brazing alloys for tungsten and tantalum
IPC: C22C27/04
Filed: 1966-09-08
Abstract: 1,136,980. Brazing alloy. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 8, 1966 [Oct.22, 1965], No.40249/66. Heading C7A. A brazing alloy for brazing W, Ta or alloys thereof comprises:- Ir 35-45% optionally Re 1-10% the balance, apart from impurities, being tungsten.
Patent GB-1438353-A (GB)
Title: Emergency cooling system for nuclear reactor
IPC: G21D5/08
Filed: 1973-08-24
Abstract: 1438353 Cooling nuclear reactors NUCLEAR POWER CO (WHETSTONE) Ltd and ENGLISH ELECTRIC CO Ltd 26 June 1974 [24 Aug 1973] 40258/73 Addition to 1336716 Heading G6C An emergency cooling system for a gas-cooled reactor 28 includes a heat-exchanger 31 to which part of the reactor coolant can be diverted after leaving the core, a safety valve 37 for permitting expulsion of water or vapour from the system if a predetermined pressure therein is exceeded and make-up feedwater means. Valves 38, 39 are operable automatically in response to triggering of a temperature responsive unit 40 for diverting part of the reactor coolant which would otherwise pass to high and low pressure gas turbines 25, 26. The make-up feedwater means comprises water reservoir 33 and pump 34. Normally, cooling is afforded by water circulating through coolers 2, 3 and heat-exchanger 5 forming part of a heat-sink circuit 6.
Patent GB-1393816-A (GB)
Title: Aluminium or aluminium alloy casting
IPC: B22D18/04
Filed: 1972-08-30
Abstract: 1393816 Apparatus for casting aluminium TOYOTA JIDOSHA KOGYO KK and TOYOTA CHUO KENKYUSHO KK 30 Aug 1972 40268/72 Heading B3F [Also in Divisions F4 and H1] Aluminium is cast using apparatus in which any ferrous metal components which contact the molten aluminium are provided with a sulphurized surface layer. In the low pressure casting apparatus shown the pipe 2 and the protecting tube 5 for the thermocouple 4 are thus protected against corrosion. The mould may also be provided with a sulphurized layer. The said layer may be formed by immersing the ferrous component in a solution of iodine or an iodide to form an iodized surface layer, and then bringing the said component into contact with molten or gaseous sulphur.
Patent GB-1441134-A (GB)
Title: Clamping tool and method
IPC: B25B23/145
Filed: 1973-08-28
Abstract: 1441134 Nut runners MITSUBISHI DENKI KK 28 Aug 1973 [28 Aug 1972 16 Dec 1972 23 Dec 1972] 40437/73 Heading B3N  A clamping tool comprises a power source for driving the clamping tool, and means which stops said driving power source when the differential coefficient of a physical quantity of the power source with respect to nut rotation or clamping time reaches a predetermined value. Figs. 1-4 show how torque, current, dT/d# and d<SP>2</SP>T/d#<SP>2</SP> vary with nut rotation angle during a fastening operation. After taking up any slack damping takes place between points A and B. Point B corresponds to the yield point. Fig. 5 shows a circuit that measures motor load current with respect to clamping time. The load current is converted to a voltage f(t) which is compared with a voltage value g(t). A comparison circuit determines f(t) - g(t) which when approximately zero stops the motor. Changes in motor consumed power or motor rotation number can be used as a basis for control.
Patent GB-1494052-A (GB)
Title: Method for preparing polycarbonate powder
IPC: B29B13/10
Filed: 1975-10-06
Abstract: 1494052 Preparing polycarbonate powder IDEMITSU KOSAN CO Ltd 6 Oct 1975 [5 Oct 1974] 40858/75 Heading C3R [Also in Division B1] A process for the continuous production of polycarbonate powder comprises heating polycarbonate solution in a receptacle 1 and simultaneously repeatedly subjecting the solution to to-and-fro agitation provided by rotation of one or more shafts 4, 4<SP>1</SP>, provided in the receptacle and having blades 5a, 5b each set at an angle to the axis of rotation of the shaft, one set of blades to direct solution in a first direction and a second set to a direct solution in an opposite direction. Volatile matter may escape from exit 8 and solution may be fed in at inlet 9. The polycarbonate used in the example is derived from bisphenol A. Specified solvents are tetrachloroethane, trichloroethane, dichloroethane, trichloroethylene, dichloroethylene, chloroform, methylene chloride, dioxan, tetrahydrofuran, chlorobenzene, toluene, ortho-, meta-, or parachlorobenzene and mixtures thereof.
Patent GB-997241-A (GB)
Title: Balancing machine
IPC: G01M1/22
Filed: 1961-11-15
Abstract: 997, 241. Measuring rotor unbalance electrically. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. Nov. 15, 1961 [Nov. 25, 1960], No. 40898/61. Drawings to Specification. Heading G1N. [Also in Division G4] The unbalance voltages U I  U II , at the bearings of a rotor are converted by means of a potentiometetric circuit into the equivalent unbalance components U 1 , U 2  in each of two compensating planes, the circuit utilising three potentiometers which are respectively set up in accordance with the distances a, b, c between the bearing planes and the compensating planes to satisfy the following equations: Specification 688,234 is referred to.
Patent GB-1101225-A (GB)
Title: Purification of monochloroacetic acid
Inventor: DELINE DENZEL DICKEY
IPC: C07C53/16
Filed: 1965-09-27
Abstract: The invention comprises crystals of monochloroacetic acid having a length:width ratio in the range 5.5:1 to 1.6:1 and a thickness:width ratio in the range 0.9:1 to 0.3:1 and a process for the preparation thereof from a mixture containing monochloroacetic acid comprising (a) adding sufficient water to the mixture to provide 1.01 to 0.5% by wt. of free water based on total weight of mixture; (b) maintaining any acetic acid content below 1.0% by wt. based on total weight of mixture; (c) diluting the mixture with an amount of up to 5 times its weight with an inert non-reactive solvent and (d) crystallizing the chloroacetic acid from the diluted mixture at a temperature of -20 DEG  to 40 DEG  C. and continuing the crystallization so that the average crystallization time for each crystal is 10 hours.  The preferred crystals are those weighing 3-25 mg.  Methylene chloride is the preferred diluent.  Examples are provided.
Patent GB-1103505-A (GB)
Title: Improvements in or relating to housings for reflector studs
Inventor: SEAR DEREK WILLIAM
IPC: E01F9/07
Filed: 1964-10-08
Abstract: 1,103,505. Reflector stud housings. DUNLOP CO. Ltd. 6, Oct., 1965 [8, Oct., 1964], No. 40990/64. Heading E1G. A reflector stud housing comprises a substantially cylindrical flexible thin-walled outer shell 11 having a thin inwardly extending rim 12 at the upper edge, a seating portion 13 fitting tightly round the base 3 of the stud 1 being attached to the rim and having an annular flange 15 engaging the top of the stud base. The housing may have a conical portion 16 engaging a depression. in the base of the stud 1 and a resilient pad 14 below this seating portion. In a modification the outer surface 24 of the seating 13 is flat and the open lower surface of the housing is filled with resilient cellular material.
Patent GB-411897-A (GB)
IPC: C13B25/00
Abstract: 411,897. Oil cooking-stoves. DAVIES BROS. & CO., Ltd., and DAVIES, B., Crown Works, Cross Street North, Wolverhampton. Dec. 14, 1932, No. 35414. [Class 126.] In a portable stove for boiling sugar, an oil burner N projects into one end wall with its flame directed along a straight tunnel B beneath a series of pans D arranged in line over the tunnel, each pan having a chamber C beneath opening into the tunnel and a flue J leading to a chimney M. Each opening has a damper F. The pans D are placed in openings in the top wall and may be replaced by covers E. Each flue J has a damper and the end flue J<4> and opening are largest.
Patent GB-943476-A (GB)
Title: Improvements in and relating to the preparation of photographic images
Inventor: ZINDLER WERNER
IPC: G03C8/40
Filed: 1959-12-07
Abstract: 943,476. Dry processing of silver halide materials. W. ZINDLER, [trading as LUMOPRINTZINDLER KOMM. GES]. Dec. 7, 1959, No. 41565/59. Heading G2C. Photographic images are produced on silver halide emulsion material by dry processing, the developer and fixer being included in or applied to the emulsion-bearing material together with a fusible material which releases water on heating so that on simply heating development and fixing is effected. Thus, (1) the developer ,fixer and fusible materials may be included in the material carrying the emulsion; (2) the emulsion-carrying material may contain the developer and the fixer and fusible materials may be in a further layer applied to it before or after exposure; or (3) the developer, fixer and fusible materials may be applied by hand or mechanically to an ordinary silver halide material before or after exposure. In case (2), the second layer may also contain materials necessary for effecting silver halide diffusion transfer. The heating may be effected by the source of light which effects the exposure. In examples, a baryta paper is coated with (a) a fixer layer from a gelatin solution containing crystalline sodium thiosulphate, anhydrous potassium metabisulphite; (b) a developer layer from a gelatin solution containing anhydrous sodium sulphite and sodium carbonate, potassium bromide, crystalline sodium sulphite and either metol and hydroquinone or hydroquinone, 1- phenyl-3-pyrazolidone, and sodium hydroxide; and (c) a silver chloride emulsion layer containing crystalline sodium sulphate, hydroquinone, and 1 : 2 : 3-benztriazole, all the layers (a), (b), (c) also containing potash alum.
Patent GB-1242113-A (GB)
Title: The preparation of unsaturated organic compounds containing an aminomethylene group
Inventor: STEVENS JOHN
IPC: C07D231/08
Filed: 1968-08-30
Abstract: 1,242,113. Amino-methylene compounds. MINNESOTA MINING & MFG. CO. 13 Aug., 1969 [30 Aug., 1968], No. 41639/68. Heading C2C. Unsaturated organic compounds of the general formula in which R and R<SP>1</SP> are each H, alkyl, substituted alkyl, cycloalkyl or aralkyl or R and R<SP>1</SP> together complete with the N atom a heterocyclic ring which may contain one or more additional heteroatoms, and X is an electron withdrawing group are prepared by (a) reacting under alkaline conditions an amine of formula RR<SP>1</SP>NH, formaldehyde and a compound X-CH 2 -COOH or (b) reacting a compound of general formula RR<SP>1</SP>N-H 2 -NR<SP>1</SP>R with X-CH 2 COOH. Amongst numerous compounds prepared in the examples are 2-dimethylaminoacrylic acid, 2-piperidinomethylacrylonitrile and 1-morpholinomethyl acrylic acid ethyl ester.